Selected MCQ

Current Question
10 men do work in 7 days; 10 women in 14 days. Days for 5 men + 5 women ____.
  • A. 7
  • B. 5
  • C. 6
  • D. 4
Correct Answer: A
Explanation:
Combined work rate.
Related Question 1
6 men and 8 women can complete the work in 10 days. In how many days can 26 men and 48 women complete the same work ____.
  • A. 4 days
  • B. 6 days
  • C. 2 days
  • D. 8 days
Correct Answer: A
Explanation:
Total work ∝ (men + women efficiency) × days; solve proportionally.
Related Question 2
Four men and two women can complete the work in 2 days. If two men alone take 5 days, how many days will four women take to complete the work ____.
  • A. 15 days
  • B. 10 days
  • C. 8 days
  • D. 20 days
Correct Answer: B
Explanation:
Use work equations: 4M+2W = work/2 and 2M = work/5 → solve for W.
Related Question 3
3 men and 7 women complete work in 10 days. 4 men and 6 women complete in how many days ____.
  • A. 50
  • B. 30
  • C. 40
  • D. 13
Correct Answer: C
Explanation:
Solve using work equations.
Related Question 4
12 children take 16 days to finish work. Time for the same work with a different number is ____.
  • A. 3 days
  • B. 4 days
  • C. 6 days
  • D. 8 days
Correct Answer: C
Explanation:
Work is inversely proportional.
Related Question 5
If 5 workers earn Rs. 500 in 10 days, 10 workers will earn ____.in 10 days?
  • A. Rs. 500
  • B. Rs. 1000
  • C. Rs. 1500
  • D. Rs. 2000
Correct Answer: B
Explanation:
Double workers → double earnings.